Thanks for the suggestion. I only darkened the lines because I was having issues in Photoshop with trying to color entire sections at once. Apparently the brown color you see on the top half of the gun somehow is the same color as the entire bottom half. I'll probably be making a revision and redo sometime in the next month or so. Still busy with a few other projects and high school stuff.

You should fix the conflicting pixel resolutions and 'clean up' those lines on the camo by making them one pixel thick everywhere. Other than that, it's good.